Give reasoning of the following questions:   a) A compound has formula CaX2. If anion of X has 18 electrons, what element is X? Which family does it belong to?       b) A compound has formula X3N2. Which group does X belong to? What is the charge on the ion of X?     c) A compound has formula X(NO3)3. If the cation of X has 12 electrons, what element is X?

Q: Why aren’t roman numerals used to indicate the charge in the name of the Al³⁺ ion?

A: If any atom of element always have the same charge, the Roman numeral is unnecessary (which…

Q: Part A: In Fe2O3, what is the total negative charge ( there are 3 oxygen)? Part B: In Fe2O3, what…

A: Given :- chemical formula of a compound = Fe2O3  To determine :-  Total negative charge in compound…

Q: 2. The atomic number of fluorine is 9. How many electrons does an ion of fluorine have if it is…

A: How many electron in F- ?

Q: 4, Cathode ray experiments permitted Thomson to calculate:  Group of answer choices a,…

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Q: You have the mythical metal element X" that can exist as 1D xt, x2+, and X°t ions. What would be the…

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Q: Cx 312 -1

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Q: Read each description in the first column of the table below. If any chemical element with atomic…

A: Modern periodic table is a tabular form of elements according to their increasing atomic number. It…

Q: Consider an ion with the symbol Y³ formed from a representative element (Y is an unknown element,…

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Q: Which ion has 38 protons, 36 electrons? CO a. Kr ОБ. Sr Oc Sr24+ O C. O d. Kr2+ O e. Sr2-

A: Given that: No of protons= 38 no of electrons= 36

Q: What is the formula of the compound in which the atom combining ratios are: boron: hydrogen :…

A: Given : The ratio of elements in the compound = Boron : Hydrogen : Chlorine = 4 : 9 : 1

Q: 13.How many protons and electrons are in one Br ion? A)35 p. 35e B)80 p. 81 e C)35 p. 34 e D)35p,…

A: In neutral element , number of protons and electrons are same but for ionic species the number  of…

Q: . An ion has a 3+ charge, 25 electrons, and a mass number of 53. What is the symbol for this…

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Q: Be sure to answer all parts. The following table gives numbers of electrons, protons, and neutrons…

A: a) For atoms (neutral species), the number of electrons is equivalent to the number of protons.…

Q: PART I: ATOMIC STRUCTURE Build an Atom simulation (https://goo.gl/LgLznB) 1. Explore the Build an…

A: An atom is the smallest particle of matter that participates in a chemical reaction, though it is…

Q: The species, 4521X2- is:   an anion, with 21, protons, 24 neutrons, and 24 electrons   an anion,…

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Q: Determine the atomic mass of potassium, given the information about potassium's stable isotopes.…

A: Given that : Mass of K-39 = 38.96370 amu Mass of K-41 = 40.96183 amu % abundance of K-39 = 93.258 %…

Q: Solve this

A: An atom is the basic and fundamental unit of matter. An atom consists of electron and the nucleus in…

Q: 3. A. B. C. A chlorine atom has 18 neutrons and an atomic mass of 35. How many protons are in the…

A: In an atom three fundamental particles are present. Positively charged particle proton and neutral…

Q: Give the names and charges of the cation and anion ineach of the following compounds: (a) CuS, (b)…

A: To write the name and charges of the cation and anion in each of the below compounds (a) CuS (b)…

Q: The number of electrons (e) and protons (p) in Cr+3 ion is ………………………

A: The provided atom is Cr3+.  Atomic number of Cr =24 When we take the neutral atom.Then, Number of…

Q: What would you predict the ionic charge of an element in column 2A (column 2 in ptable) to be? al 2-…

A: Column 2A elements are known as alkaline earth elements and they have two electrons in their valence…

Q: Give the names and charges of the cation and anion ineach of the following compounds: (a) CuS, (b)…

A: The names and the charges of the cations are as follows:

Q: Give the A, Z and neutron of an element whose symbol is Cf

A: Given, The element Cf=Californium,

Q: If element A has a charge of 3 and element B has a charge of -2 what would the proper ionic formula…

A: charge on element A = +3 Charge on element B = -2. According to criss cross rule ionic formula of…

Q: atomic number = 17, atomic mass = 35.45, and symbol = Cl. %3D a. What is the element's name? b. How…

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Q: (a) 8 protons, 10 electrons (b) 20 protons, 18 electrons (c) 53 protons, 54 electrons (d) 26…

A: Monoatomic ion consist of exactly one atom .       Example:Li+, O2-. a) 8 protons ,10 electrons.…

Q: If the formula of sodium sulfate is Na2SO4, what is the formula of iron(III) sulfate? (A) Fe3SO4 (B)…

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Q: Using the periodic table as a guide, predict the chemical formula and name of the compound formed by…

A: Since we answer only 3 subparts, we'll answer the first 3. Please resubmit the question and specify…

Q: What is the charge of the underlined atoms below? a. NO2 b. FeCl3 c. K2SO4 d. ClO3-

A: NOTE : As you mentioned find charge of underlined atoms. No underlined atoms shown. So, charges of…

Q: How many protons, electrons, and neutrons does the Vanadium +5 ion (V) have?

A: An atom is mainly composed of three sub-particles; electrons, protons and neutrons. These particles…

Q: Gallium has an average atomic mass of 69.72 amu and has two common isotopes 69Ga and 71Ga. If the…

A: An atom is the basic and fundamental unit of matter. An atom consists of electron and the nucleus in…

Q: If element A has a charge of 4 and element B has a charge of -4 what would the proper ionic formula…

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Q: The smallest unit of charge is −1.6×10−19 C, which is the charge in coulombs of a single electron.…

A: Which one gives a whole number after you divide by -1.6x10^-19C since the electron has the smallest…

Q: The name of M203, where M represents a fictitious metal in Group 6, is metal oxide metal(II) oxide…

A: Given that, M belong to Group 6, then ,

Q: Be sure to answer all parts. The following table gives numbers of electrons, protons, and neutrons…

A: The concept for determining charge and neutrality on the given element is- If electron = protons…

Q: 16 How many neutrons are in the most common isotope of Ag? 62 What is the atomic mass of Magnesium?…

A: “Since you have posted a question with multiple sub-parts (not mentioned on which question you need…

Q: How many protons(p), neutrons(n), and electrons(e) does the following ion have?   P3-  Group of…

A: The given ion is as follows: P3- The element is Phosphorous and has atomic number(Z) 15. Calculation…

Q: Among the three pictures A, B, and C, which of the following will best represent: 1. An atom? Why?…

A: An atoms contain equal number of protons and electrons and overall the charge on the atom is…

Q: Read eacn aescription in the first column of the table below. If any chemical element with atomic…

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Q: Referencing the periodic table, determine what particles and how many make up an atom of the isotope…

A: We have to use periodic table. From the periodic table we get to know the atomic number of Ag.…

Q: 1.An isotope of a neutral element has 24 electrons and 31 neutrons. What is the element? Cr Cs Cl Ga…

A: Find the solution below

Q: How can I tell the charge of NaCH3COO, NaCl, and HCH3COO? Just in general I am not sure of how to…

A: Bonds are formed through electrostatic interaction between two atoms. There could be 3 types of…

Q: The element Cellphonium (Ce) has an atomic number of 115. Its isotope 215Ce (Cellphonium - 215)…

A: Given, an element cellphonium has atomic number =115and its isotopes Ce215.we are asked to calculate…

Q: A sample of an ionic compound containing iron and chlorineis analyzed and found to have a molar mass…

A: Given molar mass = 126.8 g/mol The iron and chlorine containing compound Molar mass of Fe = 55.8…

Q: Give the names and charges of the cation and anion in eachof the following compounds: (a) CaO, (b)…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: Give the symbol and charge for the following ion having: 21 protons and 18 electrons Since in your…

A: Applying formula No. of protons=atomic number No. Of charge= no. of protons- no. of electrons

Q: What would you predict the charge of an ion from column 1A (or column 1 from ptable) to be? 2- 1- C.…

A: Since, 1A contain alkali metal.

Q: 1s°25°2p°3s°3p°3d°4s' 6. 6. hat is the chemical symbol for the ion? w many electrons does the ion…

A: Cation is positive charged species ,it is formed due to loss of electron from the valence shell of…

Q: Using the periodic table as a guide, predict the chemical formula and name of the compound formed by…

A: Chemical formula : it is a way of presenting information about chemical proportions of atoms . Rules…

Group 14 Elements

The following elements come under group 14 of the periodic table.